<template>
  <el-form ref="deptForm" :model="form" :rules="rules" label-width="120px">
    <el-form-item label="部门名称" prop="name">
      <el-input
        v-model="form.name"
        style="width: 80%"
        placeholder="1-50个字符"
      />
    </el-form-item>
    <el-form-item label="部门编码" prop="code">
      <el-input
        v-model="form.code"
        style="width: 80%"
        placeholder="1-50个字符"
      />
    </el-form-item>
    <el-form-item label="部门负责人" prop="manager">
      <el-select v-model="form.manager" style="width: 80%" placeholder="请选择">
        <el-option
          v-for="item in employeesList"
          :key="item.id"
          :value="item.username"
          :label="item.username"
        />
      </el-select>
    </el-form-item>
    <el-form-item label="部门介绍" prop="introduce">
      <el-input
        v-model="form.introduce"
        style="width: 80%"
        placeholder="1-300个字符"
        type="textarea"
        :rows="3"
      />
    </el-form-item>
    <el-form-item>
      <el-button @click="hSubmit" type="primary" size="small">确定</el-button>
      <el-button @click="$emit('close')" size="small">取消</el-button>
    </el-form-item>
  </el-form>
</template>

<script>
import { getImployees } from "@/api/employees";
import { addDepartments } from "@/api/departments";
import { getDepartmentsDetail, updateDepartments } from "@/api/departments";
export default {
  props: {
    id: {
      type: String,
      required: true,
    },
    isEdit: {
      type: Boolean,
      required: true,
    },
    originList: {
      type: Array,
      required: true,
    },
  },
  data() {
    const validCode = (rule, value, callback) => {
      // console.log(value,'value');
      // console.log(originList,'originList');
      let existCode = this.originList.map((item) => item.code);
      //编辑的状态，先移除自己的编码
      if (this.isEdit) {
        existCode = this.originList
          .filter((item) => item.id !== this.id)
          .map((item) => item.code);
      }
      // console.log(existCode);
      if (existCode.includes(value)) {
        callback(new Error(`部门编码：${value} 已存在`));
      } else {
        callback(); //放行
      }
    };
    //校验部门名称，同级名称不能重复
    const validName = (rule, value, callback) => {
      // console.log(this.id);
      //如果是新增,那么this.id就是父部门的id作为新增子部门的pid
      let existNameList = this.originList
        .filter((item) => item.pid === this.id)
        .map((item) => item.name);
      if (this.isEdit) {
        //在所有部门中找到当前编辑的部门数据对象
        const curDepartment = this.originList.find(
          (item) => item.id === this.id
        );
        //找到当前编辑的部门pid
        const pid = curDepartment.pid;
        //所有的兄弟部门的pid是一样的 找到所有的兄弟 包括自己
        const brothers = this.originList.filter((item) => item.pid === pid);
        //排除自己
        existNameList = brothers
          .filter((item) => item.id !== this.id)
          .map((item) => item.name);
      }
      console.log(existNameList);
      if (existNameList.includes(value)) {
        callback(new Error(`部门名称：${value} 已存在`));
      } else {
        callback();
      }
    };
    return {
      //收集表单数据的添加
      form: {
        name: "", // 部门名称
        code: "", // 部门编码
        manager: "", // 部门管理者
        introduce: "", // 部门介绍
      },
      employeesList: [], //负责人列表
      rules: {
        name: [
          { required: true, message: "请输入部门的名称", trigger: "blur" },
          {
            min: 1,
            max: 50,
            message: "请输入长度是1-50的字符",
            trigger: "blur",
          },
          { validator: validName, trigger: "blur" },
        ],
        code: [
          { required: true, message: "请输入部门的编码", trigger: "blur" },
          {
            min: 1,
            max: 50,
            message: "请输入长度是1-50的字符",
            trigger: "blur",
          },
          {
            trigger: "blur",
            validator: validCode,
          },
        ],
        introduce: [
          { required: true, message: "请输入部门介绍", trigger: "blur" },
          {
            min: 1,
            max: 300,
            message: "请输入长度是1-50的字符",
            trigger: "blur",
          },
        ],
        manager: [
          { required: true, message: "请输入部门的负责人", trigger: "blur" },
        ],
      },
    };
  },
  created() {
    this.loadImployees();
    this.loadDepartmentsDetail();
  },
  //解决数据不更新的方式3，使用watch侦听id的变化
  watch: {
    // 'id':function(newVal,oldVal){
    //   // console.log(newVal,oldVal);
    //   this.loadDepartmentsDetail();
    // }
    // id: {
    //   handler: function (newVal, oldVal) {
    //     this.loadDepartmentsDetail();
    //   },
    //   deep: true, //开启深度侦听
    //   immediate: true, //组件一加载，就执行
    // },
  },
  methods: {
    //重置表单的方法
    resetForm() {
      this.$refs.deptForm.resetFields();
    },
    //获取当前部门的数据
    async loadDepartmentsDetail() {
      try {
        if (this.isEdit) {
          const res = await getDepartmentsDetail(this.id);
          // console.log(res);
          this.form = res.data;
        }
      } catch (error) {
        console.log(error);
      }
    },
    //获取部门负责人的数据
    async loadImployees() {
      try {
        const res = await getImployees();
        // console.log(res,'res');
        if (res.code === 10000) {
          this.employeesList = res.data;
        }
      } catch (error) {
        // console.log(error);
        this.$message.error(error);
      }
    },
    hSubmit() {
      //需要完成兜底校验
      //实现新增
      this.$refs.deptForm.validate((valid) => {
        if (!valid) return;
        this.isEdit ? this.doEdit() : this.doAdd();
      });
    },
    //编辑部门
    async doEdit() {
      try {
        if (this.isEdit) {
          const res = await updateDepartments(this.form);
          if (res.code !== 10000) return this.$message.error(res.message);
          console.log(res);
          this.$message.success(res.message);
          //重新渲染列表数据，关闭弹层（子传父）
          this.$emit("success");
        }
      } catch (error) {
        console.log(error);
      }
    },
    async doAdd() {
      try {
        const res = await addDepartments({ ...this.form, pid: this.id });
        console.log(res);
        if (res.code !== 10000) return this.$message.error(res.message);
        this.$message.success(res.message);
        this.$emit("success");
      } catch (error) {
        console.log(error);
      }
    },
  },
};
</script>
